195 results about "Land reclamation" patented technology

The invention relates to the technical field of synthetic aperture radar interferometry, in particular to an intelligent sea reclamation site deformation monitoring system and method based on InSAR, and the system comprises a data collection module which is used for collecting a multi-temporal satellite-borne SAR image of a sea reclamation area; the data processing module is used for executing sub-pixel matching, orbit error correction, atmospheric delay correction and residual optimization; the model construction module is used for constructing a segmented orbit error model, a tide-humidity coupling model and a dynamic regression model; the verification feedback module is used for verifying leveling precision and dynamically adjusting model parameters; according to the method, by fusing terrain mutability, tide-humidity coupling and soil rheological characteristics of a reclamation scene, accurate correction of multi-source error distribution of orbit errors, atmospheric delay and creep noise is realized, and the problem of insufficient adaptability of a traditional method in reclamation area deformation monitoring is solved; and millimeter-level reliable data support can be provided for cofferdam safety, hydraulic reclamation consolidation and port engineering.

The invention relates to lithium slag-based artificial soil based on different soil layer functions and a preparation method of the lithium slag-based artificial soil. The lithium slag-based artificial soil comprises a surface soil layer, a leaching layer, a deposition layer and a parent material layer according to soil profile layers. Compared with an existing technology for preparing artificial soil from solid waste materials such as lithium slag, red mud and coal gangue, the preparation process is simple, the cost is low, and the prepared soil is free of secondary pollution risk and is environmentally friendly; the preparation of the artificial soil of soil layers with different ecological functions in a soil profile configuration can be realized, so that the artificial soil meets the requirements of mine land reclamation and mine ecological restoration on the artificial soil with a stable soil body structure, the green restoration concept that lithium slag comes from a mine and then returns to the mine is embodied, and precious natural soil resources are not consumed; and a plurality of solid waste materials which are difficult to dispose can be recycled, the recovery and treatment cost of the mine ecological environment after mining is reduced, the pollution caused by solid waste stockpiling is reduced, and the ecological environment of a mining area and the surrounding of the mining area is improved.

The invention relates to a land second ploughing comprehensive evaluation and analysis method, a storage medium and a system, and relates to the technical field of data processing, and the method comprises the steps: obtaining the soil data of a to-be-evaluated land; constructing a soil quality dynamic evaluation index mathematical model according to the soil data, and calculating a soil quality dynamic evaluation index of the land; establishing a vegetation recovery condition evaluation mathematical model according to the soil data, and calculating a vegetation recovery index of the land; constructing a landform recovery degree quantitative mathematical model according to the soil data, and calculating a landform recovery index of the land; establishing a comprehensive evaluation index calculation model, and performing comprehensive evaluation by fusing the soil quality dynamic evaluation index, the vegetation recovery index and the landform recovery index of the land to obtain a comprehensive evaluation index of the land; and based on the comprehensive evaluation index, performing evaluation result grading on land second ploughing and implementing dynamic early warning. According to the invention, the accuracy of land second ploughing comprehensive evaluation can be improved.

The invention discloses a method for planting indigenous crops by in-situ land reclamation of a coal gangue storage yard, which comprises the following steps: firstly, mixing screened shale coal gangue with other materials for in-situ composting fermentation, then flatly laying the fermented product on the surface of the coal gangue storage yard in a set pilot plant test area to obtain a growth substrate, primarily screening a plurality of indigenous crops for planting and tending, and finally, carrying out primary screening on the indigenous crops to obtain the indigenous crops. According to the conditions of crop growth vigor, yield, product quality and the like, final crops are determined for amplification engineering, and finally coal gangue storage yard in-situ land reclamation and indigenous crop screening planting are completed.

The invention provides a section reconstruction structure and method for coal gangue artificial soil, and the method comprises the steps: carrying out surface soil layering treatment on a land reclamation area, laying coarse-grained gangue at the bottom of the land reclamation area to form a coarse-grained gangue layer, and the particle size of the coarse-grained gangue is 4-6cm; coal gangue artificial soil covers the coarse-grain gangue layer to form a coal gangue artificial soil layer, and the thickness of the coarse-grain gangue layer is smaller than that of the coal gangue artificial soil layer. The coal gangue artificial soil comprises coal gangue, local soil, organic fertilizer, biochar and fungicide, and the mass ratio of the coal gangue to the coal gangue artificial soil layer is 60%. The coal gangue soil utilization benefit of the mining area can be improved, the cost can be saved while the crop growth effect is guaranteed, and the method is easy to operate, practical and low in cost.

The invention discloses a method for investigating newly increased cultivated land after land reclamation based on three-dimensional laser scanning. The method comprises the following steps: step 1, acquiring point cloud data of a target area by adopting an unmanned aerial vehicle to carry a three-dimensional laser scanner; 2, the design height and the height threshold range (a, b) of the newly-added cultivated land are determined; step 3, selecting point cloud data in a height threshold range, namely newly added cultivated land point cloud data; 4, coordinate point (x, y) values are extracted based on the newly-added cultivated land point cloud data, concave packet calculation is carried out based on a spheronization algorithm, a newly-added cultivated land polygon is generated, and boundary points (X, Y) of the newly-added cultivated land point cloud data are obtained; and step 5, calculating a newly added cultivated land area Si based on the boundary points (X, Y). According to the invention, the unmanned aerial vehicle autonomously scans and calculates the mountainous region, detects the new farmland increase condition, regularly, quickly and autonomously identifies and detects the new farmland area of the whole field of the project, detects the construction progress, and reduces the labor cost.

The invention discloses an identification and treatment method for a water and soil loss priority treatment area of a small watershed slope in a hilly area. The method comprises the following steps: calculating a small watershed soil erosion modulus and a sediment connectivity index, and carrying out geospatial modeling to form a soil erosion and connectivity partition identification priority treatment area; determining the land utilization type and terrain status of water and soil loss, and dividing functional zones from the spatial angles of an upper slope, a middle slope and a lower slope; a water and soil conservation forest is built in a forest and grass vegetation area on the slope or an abandoned cultivated land above a reclamation prohibition slope and a water and soil loss treatment area on the barren mountain and slope according to the principle of suitable land and suitable trees, and water and soil loss is prevented and controlled through natural restoration; water and soil loss prevention and control measures of slope land reclamation-hydrological network optimization and node control-grassland soil fixation and fertility increasing are adopted in a slope water and soil loss treatment area below the reclamation forbidding gradient in the slope; the slope bottom is provided with a plant filter belt, a tail end grit chamber and an ecological ditch measure for desilting and pollution reduction; the problem that a water and soil conservation treatment system in a small watershed is low in treatment degree is solved.

The invention discloses a land reclamation planning surveying and mapping collaborative operation method based on geographic information, and particularly relates to the technical field of planning surveying and mapping. A time sequence analysis method is introduced, dynamic changes of land reclamation areas are analyzed, in combination with a density-based DBSCAN clustering algorithm, time sequence dynamic clustering is performed on the areas, areas with similar characteristics are identified, a risk assessment model is constructed through a clustering result, and risk levels of different areas are assessed. The cloud platform is utilized to support collaborative operation of planning surveying and mapping personnel, and the risk assessment result of the region is updated in real time, so that the land reclamation scheme is automatically adjusted, matching of planning and actual conditions is ensured, the problem that time dynamic characteristics are neglected in the prior art is effectively solved, the timeliness and accuracy of the land reclamation scheme are improved, and the land reclamation method is suitable for large-scale popularization and application. And the management efficiency and effect of overall land reclamation are improved.

The invention relates to the technical field of land reclamation planning, and discloses a land reclamation collaborative planning system based on GIS and BIM fusion. The system comprises a basic data acquisition module which is used for acquiring a historical land GIS spatial data set, a historical BIM component data set and a historical improvement project data set of a target area; the multi-level integration module is used for carrying out space-time correlation integration on the data set to generate a land reclamation multi-source fusion data pool; the strategy generation module is used for performing multi-factor dynamic indexing in the data pool based on a preset renovation target and generating an initial collaborative planning strategy set; the strategy adjusting module is used for dynamically adjusting the initial strategy through a dual-channel regulation and control mechanism and outputting a target collaborative planning strategy; the execution feedback module drives planning execution and collects a real-time land state feedback data set; and the data pool updating module is used for comparing the difference factors of the feedback data and the preset target and updating the multi-source fusion data pool. The system improves the dynamics and accuracy of land reclamation planning.

The invention relates to the technical field of muck crushing, and discloses a building muck utilization device for land reclamation and remediation, the building muck utilization device for land reclamation and remediation comprises a rack, the top of the rack is fixedly connected with a motor I, the output end of the side wall of the motor I is fixedly connected with a belt pulley I, and two sliding grooves are formed in the inner wall of the rack; an impact convex plate is arranged on the inner wall of the rack, a second motor is started to drive convex rods to rotate, the two convex rods rotate at the same time through a driving assembly, the protruding position of a cam groove can push a sliding frame to transversely move, the impact convex plate and an impact concave plate are close to each other, meanwhile, the impact convex plate can make contact with the protruding position of a concave-convex plate, and therefore the impact convex plate and the concave-convex plate are extruded; and when the muck particles are extruded through the impact convex plate and the impact concave plate, the muck particles are longitudinally rubbed, large muck particles are crushed and crushed into uniform small blocks, and the situation that part of the muck particles are large, and the backfilling uniformity is affected is effectively prevented.

The invention relates to the technical field of land reclamation, and discloses a soil trace element dynamic monitoring method and system for land reclamation, and the method comprises the steps: obtaining a soil element data set; autocorrelation analysis is carried out according to the soil element data set, spatial interpolation is carried out according to obtained autocorrelation characteristics, and an element spatial distribution diagram is obtained; performing time sequence analysis according to the soil element data set to obtain time change characteristics; performing space-time coupling according to the element space distribution diagram and the time change characteristics to obtain space-time prediction model parameters; performing Bayesian optimization according to the space-time prediction model parameters to obtain optimized prediction model parameters; and carrying out distribution prediction according to the optimized prediction model parameters, the element spatial distribution diagram and the time change characteristics to obtain a trace element prediction result, and carrying out visualization. The method has the following effect that the dynamic monitoring accuracy of the soil trace elements can be improved.

The invention relates to the technical field of semi-arid mining area land reclamation and ecological restoration, and discloses a semi-arid mining area reclamation double-surface-soil key layer and a refined construction method thereof.The semi-arid mining area reclamation double-surface-soil key layer comprises a wind-erosion-resistant key layer and a water and fertilizer maintaining key layer which are arranged from top to bottom; the anti-wind-erosion key layer comprises a coarse particle windproof layer and a fine particle cementing layer which are arranged from top to bottom; the water and fertilizer maintenance key layer is prepared from the following raw materials: fine sand or original sandstorm surface soil, a clay mineral-based physical structure regulator, an organic water-retaining agent and a biological enhancement matrix material; the raw materials of the coarse particle windproof layer comprise gravel and coarse sand; the raw materials of the fine particle cementation layer comprise fine sand or original sandstorm surface soil, a clay mineral-based physical structure regulator and an organic water retention capacity cementing agent. The reclamation double-surface soil key layer for the semi-arid mining area can effectively resist natural erosion, improve the soil structure, improve the water and fertilizer retention capability and promote the recovery of local host plants.

The present invention relates to the technical field of desulfurization of coal gangue, specifically a high-sulfur coal gangue separation and desulfurization device and process; the steps of the process are as follows: S1: Screen and crush the high-sulfur coal gangue to less than 30 mm to effectively separate the pyrite and gangue in the coal gangue; S2: Feed the crushed high-sulfur coal gangue below 30 mm into the separation and desulfurization device for separation treatment. Due to different specific gravities, it is separated into primary pyrite, pure gangue, medium coal, and power coal by jigging gravity separation; the medium coal is washed again; the process provided by the present invention obtains primary pyrite, pure gangue, and power coal through preliminary crushing and separation of high-sulfur coal gangue; then the primary pyrite is crushed and separated again to obtain pyrite and gangue; the pyrite is directly sold, the pure gangue is backfilled for land reclamation, and the power coal is directly sold; in this way, the process thoroughly treats the high-sulfur coal gangue, and all classified materials can be comprehensively utilized.

The invention discloses a land reclamation analysis method and system for an industrial and mining area, and relates to the technical field of land reclamation analysis, and the method comprises the steps: collecting the geographic information data of a target industrial and mining area, and analyzing the land degradation attribute and future reclamation behavior prediction result of the target industrial and mining area based on the geographic information data of the target industrial and mining area; generating an external environment influence factor based on the land degradation attribute and future reclamation behavior prediction; the reclamation potential value of the target industrial and mining area is calculated in combination with the ecological restoration parameters and land reclamation standards; and through a comprehensive evaluation decision engine, generating a reclamation feasibility score and outputting a recommended reclamation scheme map. The method has the advantages that environment risk and restoration potential multi-dimensional indexes are integrated, the recommended reclamation scheme map with the remarkably optimized success rate is automatically generated, the feasibility and ecological adaptability of reclamation planning are improved, and the reclamation success rate and land utilization efficiency of the industrial and mining wasteland are effectively improved.

The invention relates to the field of land reclamation engineering, in particular to a land reclamation engineering progress monitoring system based on time sequence image analysis, which comprises a data storage module, an engineering progress image recognition engine, an engineering quality detection module, a meteorological condition compensation module and an early warning module. A Riemannian geometric model of a terrain curved surface is constructed, a project progress is analyzed and quantified through a geodesic network, a project progress image recognition engine comprises an image registration module, a Riemannian geometric terrain modeling module and a geodesic analysis module, and the Riemannian geometric terrain modeling module constructs a terrain surface model through manifold parameterization and measurement tensor calculation. The geodesic analysis module quantifies engineering progress indexes such as the earthwork completion rate, the road hardening rate and the greening coverage rate based on geodesic network changes, the system further integrates quality evaluation functions such as slope stability detection and drainage system integrity detection, and the reliability of a monitoring result is improved through meteorological condition compensation.

The utility model relates to the field of land reclamation, and discloses a soil sampling device for land reclamation, the soil sampling device comprises a supporting plate, the lower surface of the supporting plate is fixedly connected with a plurality of limiting rods, the outer surfaces of the limiting rods are fixedly connected with limiting plates, the upper surface of the supporting plate is fixedly connected with a supporting ring, and the supporting ring is fixedly connected with the limiting rods. A ground drilling cylinder is slidably connected to the inner wall of the supporting ring, a plurality of sampling grooves are formed in the side surface of the ground drilling cylinder, a plurality of containing boxes are slidably connected to the inner wall of the ground drilling cylinder, a rotating shaft is rotatably connected to the inner wall of the supporting plate, and the rotating shaft penetrates through the containing boxes; the outer surface of the rotating shaft is fixedly connected with a plurality of connecting columns, and the rotating shaft is fixedly connected with a plurality of sampling pieces through the plurality of connecting columns; the soil sampling device can be used for sampling multiple layers of soil at the same time, so that the sampling efficiency is greatly improved.

This invention relates to the field of soil sampling device technology, and more particularly to a mountable UAV soil sampling device for land reclamation. The device comprises an upper shell, a lower shell, a drilling assembly, and an air pump assembly. The upper shell is fixedly mounted on the top of the lower shell via a mounting buckle, which is then bolted to both the upper and lower shells. A bracket is fixedly mounted on the bottom of the lower shell. This invention, by installing an outer cylinder outside the guide cylinder, creates a double-layered cylindrical guiding structure. This structure ensures the stability of the drill bit sampling without affecting soil sample transmission. Furthermore, in conjunction with the air pump assembly, high-pressure airflow is used to backwash and clean the soil movement path of the drill bit, guide cylinder, and outer cylinder. This allows for the cleaning of the soil movement path during sampling point changes, significantly reducing the risk of cross-contamination between soil samples from different sampling points.

The invention discloses a hydraulic reclamation rapid land formation construction method, and belongs to the technical field of hydraulic reclamation. A hydraulic reclamation rapid land formation construction method comprises the following steps that S1, the pipeline connecting frequency is reduced, and pipeline connection is optimized; s2, upheaval pipe heads control the hydraulic reclamation elevation; s3, a proper sandy soil material is selected to dynamically blow-fill the blow-filling pug so as to accelerate consolidation; s4, a smooth drainage channel is constructed, and mud-water separation is accelerated; s5, the top of the hydraulic reclamation pug is dynamically leveled; under the condition that the elevation of the cofferdam is insufficient, the land which is nearly one meter higher than the elevation of the cofferdam can be dredger-filled, the dredger-filling construction progress can be improved conveniently, and the dredger-filling construction efficiency is guaranteed.

This application relates to an IoT-based intelligent land remediation monitoring method and system. The monitoring method includes: acquiring satellite remote sensing elevation data and historical soil composition data of the land area to be monitored; dividing the land area to be monitored into multiple grid units and assigning grid identifiers; deploying fixed soil sensor nodes and mobile drone nodes to generate a sensor network topology; collecting real-time soil parameters of each grid unit and performing noise filtering and anomaly detection to generate a soil composition dataset; inputting the soil composition dataset and historical soil composition data into a cloud-based prediction model to output a land degradation risk score and remediation strategy; controlling the execution equipment to perform land remediation operations and monitoring changes in soil parameters after execution in real time; updating the parameters of the cloud-based prediction model and optimizing the sensor network topology based on the deviation between the changes in soil parameters after execution and the expected values. This application improves agricultural production efficiency and soil health.

The application relates to the technical field of soil remediation, in particular to a land reclamation soil remediation treatment device which comprises a liquid medicine barrel, a motor is fixedly installed at the upper end of the liquid medicine barrel; in the application, the continuous rotation of the scraper one also drives the synchronous rotation of the guide rod plate and the magnetic grinding plate; when the guide rod plate is in abutment with the fixed convex plate and is extruded by the fixed convex plate, the guide rod plate moves downward on the scraper one, the compression spring two is compressed, the magnetic grinding plate is also driven to synchronously descend, the inclined surface of the magnetic grinding plate is extruded by the top block when the magnetic grinding plate descends, the magnetic grinding plate is also driven to slide on the lower end of the guide rod plate to the direction of the magnetic block, until the inclined surface of the magnetic grinding plate is separated from the top block, at this moment, the left end of the magnetic grinding plate is in close contact with the inner wall of the collecting cavity and moves downward, the granular soil remediation agent in the collecting cavity can be ground, and the condition that the granular soil remediation agent is difficult to be fully mixed with the liquid medicine in the liquid medicine barrel after being scraped off is avoided.

The invention provides a silicon fertilizer composition, a preparation method thereof, a silicon fertilizer compounding model and a prediction system, and belongs to the field of intelligent agriculture. The preparation method of the silicon fertilizer composition comprises the following steps: by taking silicon-containing industrial waste as a raw material, carrying out chlorine gas reaction, leaching to remove soluble substances by using water in one path, retaining solid substances, and carrying out hydrothermal reaction with a sodium carbonate or potassium carbonate aqueous solution; the other path is immersed in strong alkali liquor at the temperature of 180-200 DEG C to obtain a CaSiO3 component; and compounding the two products according to the required ratio to obtain the silicon fertilizer composition. The problems of high energy consumption and high cost of traditional silicon fertilizer production are solved, the production cost is reduced by 50% or above, the soil remediation efficiency is improved by 40%, and the method is suitable for soil hardening remediation, desertification control, waste reclamation and other scenes and provides key technical support for intelligent agriculture development.

The application provides a method for preparing regenerated soil by using phosphogypsum, which takes bulk solid waste phosphogypsum as raw material, and through harmless treatment, microbial alternate fermentation and trace element compound treatment, a regenerated soil with high fertility, stable structure and strong water and fertilizer retention capacity is obtained, which can be directly used for crop planting. The method can promote the plant absorption of Ca, S, P and other elements in the phosphogypsum, and realize the land utilization of all components of the phosphogypsum. In addition, through the formation of organic-inorganic complex by the compounding fermentation technology, the complex can not only promote the formation of soil aggregate structure, but also improve the biological effectiveness of trace elements and the stability of organic matter in the soil, and then build a high-quality regenerated soil with strong water retention and air permeability and long-lasting fertilizer efficiency. The application can not only effectively solve the problem of phosphogypsum storage, but also apply the prepared regenerated soil to farmland improvement, land reclamation and crop planting, and realize the goal of turning waste into treasure.

The invention discloses a coal mining subsidence area gangue continuous filling reclamation system which comprises a central processing hub, a material conveying system and a dynamic treatment operation area which are sequentially arranged, a resource circulation center is arranged on one side of the dynamic treatment operation area, and the resource circulation center is provided with an automatic spraying maintenance system. The central processing hub, the material conveying system, the dynamic treatment operation area, the resource circulation center and the automatic spraying maintenance system are jointly connected with a monitoring and dispatching system. The invention further discloses a continuous gangue filling and reclamation method for the coal mining subsidence area, through the system layout of'one heart, one area and double-flow simultaneous advancing ', high cooperation of gangue disposal and land reclamation is achieved, the scheduling strategy of'space-time decoupling-parallel advancing' is adopted, zero waiting of equipment is achieved through a'pre-jumping 'mechanism, and the reclamation efficiency is improved. Topsoil stripping, gangue backfilling and soil covering reclamation are completely carried out in parallel in space, the potential safety hazard of cross operation of equipment is avoided through a standard logistics path and scheduling, and the overall operation safety is improved.

To provide a metropolitan disaster prevention facility.SOLUTION: An urban disaster prevention facility comprises a tsunami-resistant ceiling river dike installed in a sea near a coastline and makes river water from both ends of a ceiling river along a coastline into the open sea. The urban disaster prevention facility comprises a ceiling river dike 5 not requiring land reclamation and is provided in a sea on a comparatively shallow seabed continuously from neighboring riverbanks of a plurality of neighboring rivers, and a tsunami countermeasure dike 7 that is provided on an open sea side of the ceiling river levee 5 not requiring land reclamation and has a plurality of openings 7a whose both ends connect to the coastline.SELECTED DRAWING: Figure 2

The invention provides a method and device for inverting the moisture content of a reconstructed soil layer, electronic equipment and a storage medium, and the method comprises the steps: detecting the structure of the reconstructed soil layer through a ground penetrating radar system, and obtaining the electromagnetic wave propagation data of each layer of the reconstructed soil layer; detecting the reconstructed soil layer provided with the reflector based on a ground penetrating radar system to obtain two-way travel time data, obtaining a relative dielectric constant of the dielectric layer based on the two-way travel time data and the burying depth of the reflector, and obtaining an empirical formula based on the relative dielectric constant; and correcting the empirical formula based on the actual moisture content of the reconstructed soil layer to obtain a moisture content model, and performing inversion based on the moisture content model to obtain the moisture content of the reconstructed soil layer. By combining the ground penetrating radar system and the corrected empirical formula, the method can significantly improve the accuracy of soil layer moisture content inversion, and is especially suitable for land reclamation and ecological restoration engineering in arid and semi-arid strip mine areas.

The utility model discloses a desert and saline-alkali land treatment system. The system comprises a coal gangue powder preparation and air compression system arranged in a coal mine coal gangue storage yard, a coal gangue solid-liquid mixture preparation and application system arranged in desert and saline-alkali soil areas to be treated, and a powder conveying pipeline system for connecting the coal gangue powder preparation and air compression system and the coal gangue solid-liquid mixture preparation and application system. Coal gangue is made into powder through a crusher, a screw feeder, a compressed air station and the like, and the powder is conveyed remotely. A solid-liquid mixture is prepared through powder collection, agent addition, solid-liquid mixing and the like in a treatment area, and then the solid-liquid mixture is applied and scattered through a ditching applying and scattering vehicle, an under-pressure winding and unwinding system and a dragging hose.

The application belongs to the technical field of comprehensive management of saline-alkali land and circular agriculture, and particularly relates to a multi-stage circular agriculture system and method for saline-alkali land based on multi-stage resource utilization of saline-alkali water, which comprises the following steps: through the technical chain of terrace land reclamation, seawater-like regulation, reverse osmosis desalination, planting and breeding coupling and tail water circulation, efficient cyclic utilization of natural resources in the saline-alkali area is realized. The method mainly comprises the following steps: after the saline-alkali water in the saline-alkali area is detected, the saline-alkali water is extracted for seawater-like regulation, the regulated saline-alkali water is obtained, and then the saline-alkali water is desalinated through a reverse osmosis system, and fresh water and seawater-like water are obtained, which are used for crop planting and aquatic product breeding, respectively, and the breeding tail water is recycled after solid-liquid separation. The system and method have the advantages that the system does not need external supply of fresh water, is self-contained, achieves win-win of ecological benefit, social benefit and economic benefit, realizes green and sustainable development, and has universal popularization value for comprehensive development and utilization of saline-alkali land.

The invention relates to the technical field of soil turning devices, in particular to a soil turning device suitable for land reclamation, which comprises a frame, a central transmission case and a rotary soil turning cutter shaft, the central transmission case is connected with a power output shaft of a tractor, and the frame is fixedly connected with the central transmission case. Through the arrangement of components such as the connecting and smashing mechanism and the power transmission and matching relation between the rotary soil turning cutter shaft and all the components, the connecting and smashing mechanism can drive the shearing roller to forcibly roll and shear soil blocks which are turned up preliminarily by means of the rotating power of the rotary soil turning cutter shaft; the spiral conveying blade is used for pushing soil blocks to axially move and uniformly shear the soil blocks, so that the effect that the device can finish soil deep scarification and efficient secondary crushing in one-time operation is achieved, and the fine crushing degree and uniformity of the soil are remarkably improved; the problems that a traditional soil turning device is prone to generating large-particle-size soil blocks in slightly dry or heavy soil, and the earth surface flatness is poor are solved.

The invention relates to the field of mine pit treatment, and particularly discloses a waste mine pit recovery treatment method which comprises the following steps: geological disaster prevention and treatment, one or more treatment of slope cutting, danger clearing, anchoring or retaining wall supporting on an unstable slope of a pit wall area to form waste slag and waste rocks, and stacking part of the waste slag and waste rocks in a slag top area; slope treatment is conducted, specifically, step-by-step slope making is conducted through the excavation slope ratio of 1: 1.25-1: 2, and step-by-step slope making is formed; performing land reclamation and construction to form a retaining wall, a drainage ditch and a slope safety isolation net; covering surface soil, and covering external soil with soil; vegetation recovery; and monitoring, managing and protecting. According to the scheme, when geological disaster prevention and treatment and side slope treatment are carried out, the pit wall area is sequentially constructed, comprehensive slope cutting and danger removing treatment can be carried out on the unstable side slope, stepped slope forming can be sequentially carried out, the final stepped slope forming strength is improved, and the follow-up collapse and landslide danger is reduced.

The invention discloses a soil preparation method based on molesey coal gangue and application, and relates to the technical field of solid waste resource utilization and soil improvement. The purpose of the invention is to solve the problems of environmental pollution, resource waste, poor adaptability of coal gangue soil preparation, poor improvement effect and incomplete removal of harmful impurities caused by accumulation of the mossy system coal gangue in the prior art. The method comprises the following steps: 1, pretreating the molery-series coal gangue; 2, mixing and improving; 3, microbial inoculation and curing; and 4, planting adaptive adjustment. The prepared soil is applied to mine land reclamation and agricultural planting soil improvement. According to the method, resource utilization of the mossy system coal gangue is effectively achieved, the prepared soil has the advantages of being appropriate in fertility, good in water and fertilizer retention, free of secondary pollution and the like, meanwhile, the soil preparation cost is reduced, remarkable economic, social and environmental benefits are achieved, and the method can be widely applied to the fields of mining area land reclamation, agricultural planting soil improvement and the like.